News and articles from Topstar

In plastic recycling and injection molding, particle size affects melt uniformity, metering accuracy, drying performance, filtration performance, and ultimately, part quality. Plastic granulators produce particles of varying sizes because a multitude of interacting factors, from material properties to machine geometry and operating parameters, collectively determine particle breakage behavior during the grinding process. For plastic product… Continue reading Why do plastic granulators produce plastic granules of varying sizes?

Injection molding efficiency determines a company’s competitiveness; shorter cycle times, higher first-pass yields, and predictable production efficiency directly reduce product costs. In any injection molding plant, the plastic molding machines are the core equipment, and injection molding efficiency depends on six controllable parameters that govern the physical processes of melting, filling, holding pressure, cooling, and… Continue reading 6 Essential Parameters Affecting Injection Molding Efficiency of Plastic Molding Machines

Auxiliary equipment transforms injection molding operations from a single-machine operation into a stable, repeatable production system. While the core task of the injection molding machine is to plasticize and inject molten material into the mold, injection molding auxiliary equipment controls material state, thermal stability, part handling, and process continuity. Without properly configured auxiliary systems, even… Continue reading The Importance of Auxiliary Equipment in Injection Molding Production

When you rely on expensive masterbatches or variable additives, even minor deviations in proportion can lead to economic losses and affect product performance. The Topstar gravimetric blender is designed to address these pain points effectively. As auxiliary equipment specifically designed for injection molding, the Topstar plastic gravimetric blender accurately meters and mixes two to six… Continue reading Why is the Topstar gravimetric blender the best choice for metering and mixing?

In today’s injection molding production, efficiency no longer depends solely on the injection molding machine itself, but rather on the coordinated operation of the entire production system. From material handling and drying to temperature control and automation, injection molding auxiliary equipment plays a crucial role in determining productivity, product consistency, and operating costs. However, many… Continue reading System compatibility: Topstar injection molding auxiliary equipment offers high integration for improved efficienc

The temperature has been precisely set, the injection volume optimized, and the cycle time configured, but the parts still exhibit problems such as splashing, bubbles, or inconsistent mechanical properties. Often, the common cause is moisture. If the plastic dryer for injection molding fails to reach the specified dew point, it cannot completely remove moisture from… Continue reading Why is your plastic dryer for injection molding not reaching the dew point?

Noise, dust, and energy waste are not just disruptions in the production process; they represent real costs. When high-speed granulators hum in plastic recycling or production workshops, businesses incur high electricity bills, worker fatigue, and additional cleanup. Topstar’s soundproof granulator, designed with a low-speed (20-28 rpm) cutting approach, effectively addresses this issue. Topstar combines low-speed… Continue reading Low speed 20~28 rpm: Topstar soundproof granulator achieves energy-saving and low-noise processing

A suitable auto loader directly impacts the output, product quality, and uptime of an injection molding production line. An unsuitable feeder of the wrong size or specifications can lead to insufficient material supply, contamination, increased maintenance costs, and lost production time. A suitable auto loader seamlessly integrates into the production process, reliably delivering clean granules,… Continue reading How to choose the right auto loader to meet the material conveying needs of injection molding?

When stable and responsive, the part can be molded in a single cycle. Once temperature deviations occur, cycle time, part dimensions, and product yield are all affected. Topstar’s mold temperature controller combines a dedicated 7-inch touchscreen, an optimized PID algorithm that improves control efficiency by approximately 10%, and a fast-response solid-state relay with a switching… Continue reading Controllable temperature range: Topstar mold temperature controller meet diverse needs

Processing high-temperature plastics requires exceptional care, demanding precise heating, controlled shearing, and reliable thermal management; otherwise, both material performance and production efficiency will be compromised. As a professional injection molding machine manufacturer, we believe that a plastic molding machine must combine the correct screw metallurgy, precise temperature control, robust mechanical design, and safe and reliable… Continue reading Can Topstar Plastic Molding Machine Handle High-Temperature Plastics for Injection Molding?

When customers talk about “difficult-to-process” plastics in injection molding, they refer to materials that tend to break, generate fine powder, and overheat during grinding—problems that lead to contamination and quality issues. The Topstar granulator machine is designed to address these pain points. With screenless grinding technology, low-speed gear-driven cutters, a rapid recycling process, and heavy-duty… Continue reading 6 major advantages of Topstar granulator machine in processing rigid plastics and brittle plastics

Trace amounts of moisture in plastic material granules can lead to surface defects, insufficient weld line strength, and inconsistent dimensions. Hopper dryers address this problem by removing moisture before molding, but not all perform equally well. The right dryer design, control logic, and installation can directly improve the quality and consistency of plastic products. Therefore,… Continue reading How can hopper dryers improve the quality and stability of plastic products?